IBM's Watson vs. humans on Jeopardy. Includes must-see video of the practice match.

Plus quotes from the interview with the human contestants:

Q: Humans, do you feel any pressure competing with Watson?

A: Brad isn't worried about Watson, but afraid of "Watson's progeny when they come back from the future to kill me."

Ken says he was warned by a friend, "Remember John Henry.' Ken's response: "Screw that, remember John Connor!"